Home / 67,041,007.84-100,507,268.72-20,959,168.24

Finding the Fourth Proportional to 67,041,007.84, 100,507,268.72 and 20,959,168.24

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Solution

The fourth proportional to 67,041,007.84, 100,507,268.72 and 20,959,168.24 is: 31,421,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,041,007.84 : 100,507,268.72 = 20,959,168.24 : x
  2. Step 2: Convert to fraction form
    67,041,007.84/100,507,268.72 = 20,959,168.24/x
  3. Step 3: Cross multiply
    67,041,007.84x = 100,507,268.72 × 20,959,168.24
  4. Step 4: Simplify right side
    67,041,007.84x = 2,106,548,754,445,369.25
  5. Step 5: Solve for x
    x = 2,106,548,754,445,369.25/67,041,007.84
  6. Step 6: Final answer
    x = 31,421,794.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.